KN_QUEUED
if ((kn->kn_status & (KN_MARKER | KN_QUEUED)) == 0) {
kn->kn_status &= ~KN_QUEUED;
if ((kn->kn_status & KN_QUEUED) != 0) {
kn->kn_status |= KN_QUEUED;
if ((kn->kn_status & KN_QUEUED) != 0) {
kn->kn_status &= ~KN_QUEUED;
if ((kn->kn_status & (KN_ACTIVE | KN_QUEUED)) == KN_ACTIVE) {
kn->kn_status |= KN_QUEUED;
if ((kn->kn_status & (KN_QUEUED | KN_DISABLED)) == 0) {
kn->kn_status |= KN_QUEUED;
if (kn->kn_status & KN_QUEUED) {
kn->kn_status &= ~KN_QUEUED;